摘要
利用西太平洋海域多个站位的XBT、XCTD及CTD实测温盐资料,对WOA2018温盐模型的可靠性进行了评估,开展了全深度声速剖面重构试验。结果表明,当水深分别为761~1 100 m、大于1 101 m和大于1 821 m时,实测资料计算的声速剖面与温盐模型推算的声速剖面互差在-2.0~2.0 m/s、-0.7~0.7 m/s和-0.7~0.45 m/s,而与实测温度和盐度模型推算的声速剖面互差总体上在-0.2~0.2 m/s。基于临界探测深度处温盐实测值对探测深度以外温盐模型施加约束和控制,以提高声速预测值精度有待进一步研究。
The reliability of temperature and salinity model of WOA2018 are evaluated by using the oceanographic survey data of XBT,XCTD and CTD which were obtained in the Western Pacific Ocean.The sound speed profile differences(SSPDs)betw een the measured SSPs(calculated by the measured TPs and SPs)and the SSPs reconstructed using both TPs and SPs of WOA2018 are-2.0~2.0 m/s,-0.7~0.7 m/s,and-0.7~0.45 m/s,at the depth of 761~1100 m,1100~1820 m,and deeper than 1821 meters,respectively.The SSPDs betw een the measured SSPs and the SSPs reconstructed using the measured TPs and the SPs of WOA2018 are-0.20~0.20 m/s in the above depth ranges.According to the measured values of temperature and salinity at the detection depth,the model values beyond the detection depth should be constrained to improve the accuracy of the predicted values of sound speed.
作者
黄辰虎
王梓
张晓娟
姚俊杰
李占桥
申家双
陆秀平
HUANG Chenhu;WANG Zi;ZHANG Xiaojuan;YAO Junjie;LI Zhanqiao;SHEN Jiashuang;LU Xiuping(College of Artificial Intelligence,National University of Defense Technology,Changsha 410073,China;Naval Research Academy,Tianjin 300061,China;Demonstration Center for Battlefield Environment System,Joint Staff of the CMC,Beijing 100089,China;91001 Troops,Beijing 100841,China;91250 Troops,Zhoushan 316000,China)
出处
《海洋测绘》
CSCD
2020年第2期9-14,共6页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41974005,41876103,41804011)。
关键词
水深测量
温度剖面
盐度剖面
声速剖面
探测深度
bathymetric surveying
temperature profile
salinity profile
sound speed profile
detection depth
作者简介
黄辰虎(1979-),男,山西新绛人,高级工程师,博士研究生,主要从事海底地形测量数据处理以及海洋潮汐、海水声速的分析及顾报研究。
